Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method of adjusting display device driving voltage, comprising: in response to receiving a driving voltage of a display device, comparing the driving voltage with a driving voltage threshold to determine whether the driving voltage is larger than the driving voltage threshold, wherein the sliding tail unevenness (Trace Mura) of the display device corresponding to driving voltages higher than the driving voltage threshold exceeds predetermined acceptable Trace Mura for the display device; and when it is determined that the driving voltage is larger than the driving voltage threshold, adjusting the driving voltage to make the driving voltage smaller than or equal to the driving voltage threshold such that Trace Mura for the display device is reduced; wherein adjusting the driving voltage to make the driving voltage smaller than or equal to the driving voltage threshold comprises: selecting a gamma curve from at least two preset gamma curves according to the driving voltage threshold to adjust the driving voltage to make the driving voltage smaller than or equal to the driving voltage threshold, wherein a highest driving voltage on the selected gamma curve is closest to the driving voltage threshold.
A method for reducing display artifacts ("Trace Mura") involves monitoring the driving voltage of a display. The method compares the current driving voltage to a threshold. This threshold represents the point where Trace Mura becomes unacceptable. If the driving voltage exceeds this threshold, the method reduces the driving voltage. The reduction is achieved by selecting the best gamma curve, from a set of available gamma curves, for the current driving voltage. Specifically, the system picks the gamma curve whose highest driving voltage is closest to the threshold. This adjusts the driving voltage to be at or below the threshold, reducing the visibility of Trace Mura.
2. The method according to claim 1 , wherein liquid crystal transmittance corresponding to the value of the driving voltage threshold is larger than 60% of the liquid crystal transmittance in the display device.
Expanding on the Trace Mura reduction method: the driving voltage threshold is determined based on liquid crystal transmittance. The threshold is set such that the liquid crystal transmittance at that voltage is greater than 60% of the maximum liquid crystal transmittance achievable by the display. So the system picks a voltage point where the display is still operating with reasonably high brightness but above which Trace Mura becomes more noticeable.
3. The method according to claim 1 , wherein before comparing the driving voltage of the display device with the driving voltage threshold, the method further comprises: detecting a triggering signal indicating a touch operation by a user; and, wherein comparing the driving voltage of the display device with the driving voltage threshold for reducing Trace Mura of the display device only when the triggering signal is detected.
Building on the Trace Mura reduction method: the method only activates when a touch event is detected on the display. The system monitors for a "triggering signal" indicating a user touch. Only when this signal is present does the method compare the driving voltage to the threshold and potentially adjust it to reduce Trace Mura. This reduces unnecessary processing and voltage adjustments when the display isn't being actively touched.
4. A display device, comprising a processor, a memory and a display panel, wherein the memory is configured to store codes of a computer program and the processor is configured to execute the computer program to: in response to receiving a driving voltage of a display device, compare a driving voltage of the display device with a driving voltage threshold to determine whether the driving voltage is larger than the driving voltage threshold, wherein the sliding tail unevenness (Trace Mura) of the display device corresponding to driving voltages higher than the driving voltage threshold exceeds predetermined acceptable Trace Mura for the display device, and adjust the driving voltage to make the driving voltage smaller than or equal to the driving voltage threshold such that Trace Mura for the display device is reduced, when it is determined that the driving voltage is larger than the driving voltage threshold; and the display panel is configured to display based on the driving voltage adjusted by the driving unit; wherein the processor configured to adjust the driving voltage to make the driving voltage smaller than or equal to the driving voltage threshold is configured to: select a gamma curve from at least two preset gamma curves according to the driving voltage threshold to adjust the driving voltage to make the driving voltage smaller than or equal to the driving voltage threshold, wherein a highest driving voltage on the selected gamma curve is closest to the driving voltage threshold.
A display device with reduced Trace Mura includes a processor, memory, and a display panel. The memory stores a program that, when executed by the processor, monitors and adjusts the display's driving voltage. Upon receiving a driving voltage, the program compares it to a pre-defined threshold related to acceptable Trace Mura levels. If the voltage exceeds the threshold, the processor selects a gamma curve from multiple available curves to reduce the voltage. The selected gamma curve has a maximum driving voltage closest to the threshold. The display panel then displays the image based on the adjusted driving voltage.
5. The display device according to claim 4 , further comprising a touch screen, wherein the touch screen is configured to receive a triggering signal.
This display device that reduces Trace Mura also includes a touch screen to receive touch input. The touch screen generates a "triggering signal" when touched. This signal is used by the system to initiate the voltage adjustment process, building on the described mechanism where the device compares the driving voltage to a threshold and adjusts it using a gamma curve selection.
6. The display device according to claim 5 , the processor is further configured to detect the triggering signal indicating a touch operation by a user and adjust the driving voltage for driving the display panel to display when the triggering signal is detected.
Building on the display device with a touch screen: the processor is configured to detect the touch event signal from the touch screen. When the signal is detected, the processor adjusts the driving voltage to reduce Trace Mura. The display panel is then driven with the adjusted voltage. This ensures that voltage adjustments only occur when the display is being touched, saving processing power.
7. The display device according to claim 5 , wherein a touch control region is defined by the triggering signal, and the processor is configured to only adjust the driving voltage of the touch control region of the display panel.
Building on the display device with a touch screen: when a touch event triggers the system, a specific "touch control region" on the display is defined. The processor then *only* adjusts the driving voltage within that region, rather than the entire display. This local adjustment optimizes power consumption and minimizes any potential visual artifacts outside of the touched area.
Unknown
September 26, 2017
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